Damkoe.

Chemical process simulation, in a browser tab

Damkoe builds chemical process flowsheets and gives you live simulation, economics, safety screening and a generated P&ID on top of whatever you draw. It runs entirely in the browser, on whatever machine you already have, and checks its own results against another simulator.

Open the simulator No install, no account. Opens on a solved butane isomerization unit.
The Damkoe 3D flowsheet editor showing a solved butane isomerization unit: a feed tank, mixer, reactor, cooler, distillation column and product tank connected by tagged pipe runs.
One world unit is one metre. Equipment is drawn at the size its own process specification implies, and pipes route orthogonally with true long-radius elbows.
84

Results graded against DWSIM

Inside the app, on a Verification tab. Disagreements that have been diagnosed but not fixed ship as visible failing rows, not widened tolerances.

85

Documented methods

Every correlation is cited to its source and carries the range it was fitted over, so a student can check any number against the textbook it came from.

2,240

Regression checks

Analytic anchors wherever one exists (the Kremser equation, Gouy–Stodola, Clausius–Clapeyron) rather than values captured from the code's own output.

Who built it

Damkoe is a single-developer project. It exists because process simulation is taught on tools that cost more than a department's software budget and run only on a lab machine, when a student should be able to open a flowsheet on whatever computer they already have.